National Sample Survey 15th round july1959-1960   Some results of the land utilisation survey and crop-cutting Experiments.    

 -  1959 
 - 68p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Esn2, N60 - N59, K3.79